Intermediate coupling.



N0. 705,989. Patented July 29, I902. Y

W. C. WILSON. INTERMEDIATE COUPLING.

(Application filed May 26, 1902.)

(No Model.)

1,0 \IIIIIIIII UNITED STATES PATENT OFFICE.

WILLIAM 0. WILSON, OF ST. LOUIS, MISSOURI.

INTERMEDIATE COUPLING.

SPECIFICATION forming part Of Letters Patent N0. 705,989, dated July 29,1902.

Application filed May 26, 1902. Serial No. 109,099. (No model.)

To ctZZ whom it may concern.-

Be it known that 1, WILLIAM C. WILSON, of the city of St. Louis, Stateof Missouri, have invented certain new and useful Improvements inIntermediate Couplers, of .which the following is a full, clear, andexact description, reference being had to the acoompany= ing drawings,forming a part hereof.

My object is to construct an intermediate coupler; and my inventionconsists of the novel features herein shown, described,- and claimed.

Figure 1 is a top plan view showing my intermediate coupler in positionfor use. N Fig. 2 is a vertical central section of the intermediatecoupler. Fig. 3 is a horizontal central section of the intermediatecoupler.

Referring to the drawings in detail,-in the 01d construction theflange-plate 5 is adapted to be attached to the end sill of alocomotivetender or locomotive-fender and has theintegral socket 6 toreceive the shank 7 of the coupler-head 8, and a pivot-pin 9'is insertedthrough the socket 6 and shank 7 to pivotally mount the coupler-head.That is the old construction and is defective when applied tolocomotives, because it will not allow suffi cient swing of thecoupler-head to make a coupling between a locomotive and a long car on asharp curve, and if the coupling is made before the curve is reachedthere is great danger of derailing the car, breaking a wheelflange, ordoing other damage. My interme diate coupler is intended to overcomethese difficulties, and consistsof the shank 10, to be inserted into thesocket'6 and having a pinhole 11 to receive the pin 12 and the socket 13to receive the shank 7 and having pinhole 14: to receive the pin 9. Theshank 10is cored, as indicated by 15. The socket 13 is offset upwardlyrelative to the shank 10, as indicated by the shoulder 16, so that whenthe car-coupler is low' relative to the locomotivecoupler theintermediate coupler may be turned bottom upward, thereby lowering thesocket of the intermediate coupler a distance equal to the height of theshoulder 16.

When the original coupler-head is pivoted to the original socket, thesocket limits the motion of the coupler-head, said motion being equal tothe distance between the line 17 and the line 18. The line 17representsthe straight line of draft, and the line 18 represents the limit ofmotion on each side of the line-of draft. In the ordinary constructionthe distance betweenthe lines 17 and 18 on the trans verse line 19 istwo and one -half inches. When the intermediate coupleris used, theintermediate coupler moves the same distance as the coupler-head=thatis, to the line 18- and the coupler-head, which is now pivoted to theintermediate coupler, moves to the line 20, and the distance from theline 20 to the line 17 on the line 21 is approximately eight andthree-fourths inches. Thus it will be seen that by the use of myintermediate coup ler the total swing of the coupler-head is increasedfrom five inches to seventeen and onehalf inches and that by this meansthe locomotive may be coupled to a car upon a very sharp curve, or a carmay be drawn around a very sharp turn without danger of derailing thecar or breaking the wheel-flanges or causing otherjdamage.

I claim- 1. The combination with a socket and a coupler-head adapted tobe pivotally mounted in the socket; of an intermediate coupler adaptedto be'pivotally mounted in the said socket uponthe removal of thecoupler head therefrom, and adapted to pivotally mount the coupler-head;substantially as specified.

2. The combination, with the usual socket and coupler-head, of anintermediate coupler adapted to be inserted between the coupler head andthe socket to increase the lateral motion'of the coupler-head;substantially as specified.-

-8. The combination with the usual socket and coupler-head, of anintermediate coupler adapted to be inserted between the socket and thecoupler-head to increase the lateral mo tion of the coupler headg saidintermediate coupler being'offset so as to change the height of thecoupler-head by reversing the intermediate coupler; substantially asspecified.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM 0. WILSON. Witnessesi ALFRED A. EIC'KS, M. G.In1oN.

